What is the next number in the sequence: 2, 5, 11, 23, ____?

Complete:

To mention the "5th term" we write ________.

What is the next number in the sequence: 1, 4, 9, 16, ____?

Find 10^th term of sequence: {3,5,7,…} 

 What is the next number in the sequence: 5, 10, 20, 40, ____?

What is the next number in the sequence: 2, -4, 6, -8, ____?

Complete:

{3,5,7,…} is a __________.

Complete:

{4,8,12,…40} is a __________.

Complete:

{3,5,7,...} is a __________.